Rotary pump.



J. R. KINNBY.

ROTARY PUMP. APPLIGATION'FILED 11111111, 1909.

Patented May 17, 1910.

2 SHEETS-SHEET 1.

` Timm' J. R. KINNEY.

ROTARY PUMP. APPLIGATION FILED MAY 11, 1909.

PatentedM-y 17,1910.

2 SHEETS-SHEET 2.

JUSTUB B. "XINNEY, F DOBCHESTEB, MASSACHUSETTS. 1

ROTARY BUMP.

Specification ofLetters Patent. Patented May 1'?, 1910..

vApplication tiled May 11, Y1909` Serial No. 495,551.

. To all whom it may concern:

Be it known that I, Jus'rusR. KINNEY, a citizen of the United States of America, and a resident of Dorchester, in the county of Suifollr and State of Massachusetts, have invented certain new and useful Im rovexnents f pump of this class in whicV The invention consists in certain novel.

features of construction and arrangement of parts which will be readily understood by reference to the description of the drawings andto the claims hereinafter given.

.casing may be secured in position.

- 13. Each si e wall of the 'extends the inlet pipe 19. Each piston Of the drawings: Figure 1 represents a vert-ical section of a pump embodying the features of this invention. Fig. 2 represents a horizontal section of the same, the cutting plane being on line 2-2 on Fig. 1, and Fig. 3 represents a detailed section, the cutting plane being on line 3-3 on Fig. 2. y

Similar characters designate like parts throughout the drawings.

In the drawings, 10 represents a suitable casing provided with supporting feet 11 having openings 12 therein by which "Itie e casing is provided with two interior cylindrical iston chambers 13 in each of which is revo ubly mountedan eccentric piston 14 secured to and revoluble with the shaft 15 centrally dis osed within the piston chamber istons 14 is provided with a packing 16 orced outwardly by means of a plurality lof s rings intovco'ntact with the side walls of t e piston chamber 13. That part of the periphery of the piston 14 farthest removed from the axis of the shaft 15 is provided` with a packing member 17. Each piston chamber 13 communicates with a chamber 18 from whgch 1 is also connected by means of apassage 2() witha chamber 21 with which communicates the outlet pipe 22. The passage 20 is nor-- ton 14 is a shoe. 24 pivota 27 to the casing 10.v

outward movement revolu le shaft v 15.

mally closed by means of a pivoted valve 23 of any welbknown construction.

Co-acting with the peri hery of each pisy connected at 25 to a blade 26 pivoted at The two pistons 14 are oppositely disposed las indicated in full and in dotted lines in Fig-. lof the drawin s.

he division mem er v28 interposed between the two piston chambers 13 is provided with a socket 29 into which extends .PATENT breien. f

the slotted cylindrical stem 30v of a forked l member 31 in which is pivoted on the pin 32l thelrocker member 33. 'Each end of the rocker member 33 is provlded Wlth a semis spherical socket 34 in which restsl the opposite end lof which is rounded and rests in a Semi-Spherical socket 36 formed in a boss. 37 upon the pivoted blade 26.

The lposition of thegpivot 32 relative'to the axis of the revoluble kshaft 15 is accu rately ldetermined sothat in the rotation of the oppositely dis ward movement o 26 will act upon the rocker beam 33 through one of the struts 35 to force the shoe 24 of the other pivoted blade 26 into engagementY 14. As the pistons 14 with theother piston continue to rotate in of one of the pivoted blades 26 will always be acting through the osedV istons 14 the-out` Aone o the pivoted blades their chambers 13 and rounded end of a cylindrical strut 35, the

rocker member 33 to`retain the shoe 24 of the other pivoted blade 26 in engagement with the other piston throughout its rotation. i

yBy providin the semi-spherical sockets 34 and 36 for t e rounded ends of the struts 35 these struts are permitted to move in any direction to accommodate themselves 'to the various angular movements of the pivoted blade 26 and rocker members 33. v

When any wear occurs u on the shoe 24 the wear maybe taken up y means of the wedge 38 extending throu h a slot 39 in the stem or shank 30 of the orked member 31. This wed e 38 is adapted to be moved transversely o said slot 39 b means of the revoluble member 40 threa ed to the casing 10 at 41 and locked in adjusted osition by means of the vlock nut 42. It is o vious that by adjusting this member 40 the pivot pin 32 ma be adjusted toward and f ein the This makes-a positive admitting a motive agent to device interposed between the two opposed pistons adapted to operate in such a manner that the movement of one iston against its pivoted blade will insure t e contact of the other pivoted blade'a ainst the 'eriphery of the other piston at all times. Il? is also evident that the device described and shown may-be used equally as well as a motor by the piston chamber and causin a rotation of the same, power` being taken rom vthe revoluble shaft vof said piston.

It is believed that the operation and-many advantages of the invention will be thoroughly understood from the foregoing.

Having thus described my invention, I claim:

1. In a device of the class described, the combination of two oppositely-dis osed rotary eccentric pistons; 1a pivoted' glade for each piston; a rocker membergstruts the ends of which are rounded and rest in sockmember esame throu h said slot for adjustin the position of sai member relative to saidg pistons.

3. In a device of the class described, the combination of two oppositely-dis osed ro- 'tary eccentricpistons; a pivoted lade 'for each piston; a rocker member; struts the ends of which are rounded and rest in sockdslotted member to which said rocker member is pivoted; a wedge extending throu h said slot for adjusting the position of sai `member relative to said pistons' and a revoluble member threadedrto a fixed justing said Wedge.

4. In a device of the class described, the

tar

each piston; a rocker member; strutsthe ends of which are rounded and rest in sockets in said blades and member; a movable slotted member to which said rocker memberis pivoted; a said slotfor adjusting the position of said. member relative to said pistons; a revoluble justin said Wedge; and ymeans for locking said treaded member in ad'usted position Signedby me at 4 Post O ce Sq.; Boston, Mass., this 28th da of A ril, 1909.` j

vlSTIIIJS R.' KIN N EY. vWitnesses:

WALTER E. LOMBARD,

NATHAN C. LOMBARD.

ber l` is pivoted; and a wedge extending elementfor admember threaded to a fixed element for ad.

ets in said blades and member; a movable l combination of two oppositely-dis osed roeccentric pistons; a pivoted lade for,

wedge extending through 4- i 

